CN206523723U - The display of built-in light source - Google Patents

Abstract

The utility model discloses a kind of display of built-in light source, including first substrate, second substrate, pixel layer and the light source and drive circuit fixed with the second substrate, the first substrate is transparent medium plate, the first substrate has the preceding surface of relative first, surface and relative incident light end face after first, non- incident light end face, the second substrate has surface after the preceding surface of relative second and second, surface is provided with transparency electrode after described first, the second preceding surface is provided with electrode, the first preceding surface, surface is smooth plane and is parallel to each other after first, surface distance is fixed before surface and second after described first, after the pixel layer is filled in described first between surface and the second preceding surface, the pixel layer comprising it is substantial amounts of being capable of independent control and the pixel that can scatter, the light source is adjacent to the incident light end face.The display thickness is relatively thin, can avoid a large amount of losses of light and disturb the generation of light.

Description

The display of built-in light source

Technical field

The utility model is related to field of flat panel displays, more particularly to a kind of flat-panel monitor of built-in area source.

Background technology

The display of built-in light source is related to the technology of two aspects, one be display lighting engineering, another is The thin type technology of display.

The preposition lighting engineering of display is first analyzed below.

In the equipment such as television set, mobile phone be commonly used TFT LCD, it be it is a kind of by transmitted light constitute image show Show device, it is necessary to which so-called rearmounted light source (being generally backlight) is illuminated.Backlight is mainly made up of light guide plate and illuminator, hair The light that body of light is sent enters light guide plate from the end of light guide plate, and the one side of light guide plate is to do various on smooth plane, another side The trickle diffusion layer of various kinds, including the site got with laser and groove, also including the sags and crests processed with mould, in addition to print The astigmatism site brushed and grid, the light more than critical angle come from the end fire of light guide plate, in smooth plane Total reflection, and scattered on the face with diffusion layer, i.e., in diffusion layer glazing, all directions are all launched backward forward, wherein The light of backward launched reflexes to front with reflective membrane, then with launch forward photosynthetic and irradiating TFT display (referring to Fig. 1 D). Electrophoretic display device (EPD) (EPD) and bistable liquid crystal display used in Kindle e-book, their own does not light, and is another The display of image is made up of reflected light, they realize normal display by the reflection of sunshine and light, under dark surrounds not Good display can be realized.Rearmounted backlight is not suitable for electrophoretic display device (EPD), because in each pixel of its pie graph picture All contain substantial amounts of powered solia particle, these solia particles have very strong light scatter properties, own to the light of back side emitter Scatter pixel all indistinctions.Rearmounted backlight is not applied to for bistable liquid crystal display yet, because this display The device back side generally sets completely opaque reflecting plate.Therefore, non-luminous reflected displaying device must use other method solutions Certainly normally shown under dark surrounds.

The solution of most original is, LED illumination lamp is placed in the front side edge of the class display, although this mode can be with Lighting problem is solved, but because spot light sunset illumination, the utilization rate of light is very low, and the shade distinctions of illumination region are very big.

Another is the solution of preposition area source.Such as Patent No. ZL 201420513510.4, (notification number is CN204114726U the display of preposition area source), which disclose one kind and is arranged on before bistable liquid crystal display Area source structure, the rear surface (close to the face of display) of its light guide plate be with having laser machined the scattering surface of site, it is and preceding Surface is smooth plane, and the light come in from light guide plate side end face is totally reflected in smooth flat, and the part on scattering surface Light is transformed into the light of backward launched, realizes the face optical illumination of display；Publication No. CN103217848A patent it is also proposed that A kind of area source structure being arranged on before electric paper display, the preceding surface (close to the face of observer) of its light guide plate is scattered Penetrate face, rear surface is smooth flat, the light come in from light guide plate side end face through the scattering surface also some be transformed into backward The face light of transmitting.Respectively as illustrated in figures ib and 1 c, it is distinguished in the position of scattering surface, Tu1BXiang the principle of this two patented technology The deal for the light that the deal of the light scattered afterwards is scattered relatively forward is few, and Fig. 1 C are then opposite.But this preposition illuminated by surface light source There are some shortcomings in mode, first critical defect is that the light scattered on the scattering surface of light guide plate has considerable part direct The eyes (light that such as Figure 1B and Fig. 1 C are represented to upward arrow) of observer are irradiated to forward, are constituted serious light interference, are caused Picture contrast is significantly reduced, and the light scattered on the scattering layer that second has the disadvantage on light guide plate only has part irradiation figure backward Picture, the utilization rate of light is low, and the 3rd scattering layer having the disadvantage on light guide plate comes blurring effect, the 4th to picture strip behind Have the disadvantage that light guide plate manufacture scattering layer spends cost.

Analyze the thin type technology of display again below.

The purpose of thin type is to reduce the thickness and weight of display.

The solution of most original is to make display using relatively thin glass substrate, and this may cause glass in processing Glass badly broken, or glass substrate is thinned in the final stage of display.But when display additional function it is more and more, than The back side such as display, which adds, adds touch-screen or during front light-source backlight, display before, can also increase thickness, so thin type Necessity still have.

JPH0990359 A, CN1412609 A, CN1442736 A propose a kind of liquid crystal display with rearmounted light source Device, their common feature is metacoxal plate dual-use material, i.e., as the supporting body of lower electrodes for display, and is used as rearmounted light source Light guide plate, so as to reduce the thickness of a light guide plate than traditional backlight source technology.Thickness is reduced, but extinction in leaded light The participation of the big polaroid (polarizer) of property causes the loss of light very big, and (or plastics, industrial upper substrate is nearly all in glass Glass) on substrate additional guide-lighting transfer become the diffusion layer (reflection tape, light scattering point, small light path converting inclined-plane) of light direction Its difficulty is big and additionally increases very big cost.More it has to be noted that this structure is only applicable to the pixels such as liquid crystal display is Transparent display, is not suitable for the reflected displaying devices such as electrophoretic display device (EPD).

As can be seen here, existing front located light source technology has very big defect, and it is had its source in mechanically with astigmatism The light guide plate of layer is placed in before display, is brought the shortcoming of interference light and other side effects, is caused picture contrast to be remarkably decreased； And existing thin type technology, although it is effective to liquid crystal display but inapplicable to reflected displaying devices such as electrophoretic display device (EPD)s.

Therefore, for reflected displaying devices such as electrophoretic display device (EPD)s, a kind of new principle and new structure is proposed, that is, is kept thin Shapeization is constructed, and the existing preposition area source display of solution has the drawback that very necessary again.

Utility model content

The utility model provides a kind of display of new built-in light source.

The utility model provides a kind of display of built-in front located light source, including first substrate, second substrate, pixel layer and The light source and drive circuit fixed with the second substrate, the first substrate is transparent medium plate, and the first substrate has Surface and relative incident light end face, non-incident light end face after relative the first preceding surface, first, the second substrate have phase To the second preceding surface and second after surface, surface is provided with transparency electrode after described first, and the second preceding surface is provided with electrode, Surface is smooth plane and is parallel to each other after the first preceding surface, first, surface and the second preceding surface after described first Distance fix, after the pixel layer is filled in described first between surface and the second preceding surface, the pixel layer is comprising a large amount of The pixel for being capable of independent control, the pixel is the medium containing a large amount of microscopic scatterers, the light source it is neighbouring it is described enter Light end face is penetrated, the light that the light source is sent enters the first substrate through the incident light end face, and through the first substrate Enter the pixel layer after reflection, refraction, the drive circuit is electrically connected with the electrode.The first substrate includes stacking At least two layers transparent medium plate, dielectric-slab described in adjacent two layers is bubble-freely fitted entirely with Optical transparent adhesive.

The first substrate can be single plate glass, single PMMA plates, single PET sheet or single PC Plate, can also be composite plate, plate glass that plate glass bubble-freely fitted entirely with PMMA plates with Optical transparent adhesive (OCA) with The composite plate or plate glass that PET sheet is bubble-freely fitted entirely with Optical transparent adhesive (OCA) and PC plate Optical transparent adhesive (OCA) The composite plate bubble-freely fitted entirely, the composite plate is the gular transparent dielectric-slab of four end faces.Certainly, first substrate It can be made up of other transparent materials.

First substrate can only have one layer；Or the composite plate being made up of at least two layers transparent medium plate, adjacent two layers Jie The corresponding surface of scutum forms bubble-freely full laminating all by optical clear glue laminating.When first substrate is composite plate, Surface is the surface of the transparent medium plate of rearmost (closest second substrate) after first, and the first preceding surface is that forefront is (farthest From second substrate) transparent medium plate surface.Second substrate can only have one layer, or be made up of at least two layer medium plate Composite plate.

The pixel that the pixel layer is included is the electrophoretic medium containing powered solia particle.

The light source includes multiple sheet illuminators being spaced apart, and the illuminator is parallel with the first substrate.

The second substrate has the part for protruding horizontally up the incident light end face, and the drive circuit and light source are located at The part stretched out.

The light source includes illuminator and optical fiber, and the optical fiber is located between the illuminator and incident light end face, described The light that illuminator is sent passes through the fiber-optic illuminated incident light end face.

The display of described built-in light source, in addition to lighttight refractive body, the refractive body are located at first base The non-incident light end face of plate.

The display of described built-in light source, in addition to it is light tight and can irreflexive occulter, the occulter sets In the described first preceding surface and the neighbouring incident light end face.

The occulter and refractive body are integrally formed aluminum alloy sheets.

The beneficial effects of the utility model are：It is light guide plate that creativeness, which is proposed with the prebasal plate of existing display, directly Using pixel layer as diffusion layer, plug-in light guide plate is on the one hand eliminated, is conducive to the thin type of display, on the other hand eliminates Diffusion layer before display, it is to avoid the generation of interference light and a large amount of losses of light.

Brief description of the drawings

Fig. 1 is the principle and structural representation of traditional area source；

Fig. 2 is the sectional view of the first embodiment of the display of built-in area source；

Fig. 3 is the front view of the first embodiment of the display of built-in area source, wherein, the illuminator of light source is LED；

Fig. 4 is the front view of the second embodiment of the display of built-in area source, wherein, light source include optical fiber with LED.

Embodiment

The utility model is described in further detail below by embodiment combination accompanying drawing.

As shown in Figures 2 and 3, a kind of display of built-in area source, including first substrate 1, second substrate 2, pixel layer 3rd, illuminator 4, occulter 5, refractive body 6, drive circuit 7, lighting circuit 8 and bonded adhesives 9, first substrate 1 are that rear surface is plated The transparent medium plate of transparency electrode, second substrate 2 is the electrical insulating board that electrode has been plated on preceding surface, and pixel layer 3 is that scattering is strong Dielectric layer, relative to observer, first substrate 1 is preceding, and its transparency electrode is on rear surface；Pixel layer 3 is in；Second substrate 2 exists Afterwards, when electrode of its electrode on preceding surface, transparency electrode and second substrate 2 on first substrate 1 is powered, pixel layer 3 The visible reflection properties of each pixel can be controlled selectively.Illuminator 4 is close to the right side of first substrate 1, and it is sent out The light directive first substrate 1 gone out, and turn to pixel layer 3 by reflecting and reflecting.Occulter 5 is arranged at the preceding surface of first substrate 1 The right portion, it acts on the light less than critical angle for being to prevent illuminator 4 from sending and leaked to the outside of first substrate 1.Refractive body 6 is set The end region not occupied by illuminator of first substrate 1 is placed in, its effect is that reflection light 4 is mapped to the end face of first substrate 1 Light.Drive circuit 7 is connected to first substrate 1 and electrode on second substrate 2 and provides driving electric signal.Lighting circuit 8 connects It is connected to the electrode of illuminator 4 and power for illumination is provided.Bonded adhesives 9 is the gap for fixing first substrate 1 and second substrate 2.

The first substrate 1 of present embodiment can be provided with ITO (indium tin oxide) transparency electrode plate glass, PET (polyethylene terephthalate) plate, PC (makrolon) plate, (polymethyl methacrylate is commonly called as lucite to PMMA Or acrylic) plate etc., they are all the larger transparent medium plate of refractive index, the effect with good light guide plate.This embodiment party Formula first substrate material of main part can also be plate glass and PMMA plates with answering that Optical transparent adhesive (OCA) is bubble-freely fitted entirely The composite plate or plate glass and PC plate that plywood, plate glass are bubble-freely fitted entirely with PET sheet with Optical transparent adhesive (OCA) are used The composite plate that Optical transparent adhesive (OCA) is bubble-freely fitted entirely, these composite plates constitute a complete transparent medium plate.

The second substrate 2 of present embodiment is the electrical insulator that electrode has been plated on surface, and electrode can be transparent ITO, also may be used To be opaque metal, second substrate can with it is transparent can also be opaque, preferably plate glass, PET film, PC plate, PMMA plates. Second substrate is unimportant either with or without the effect of light guide plate.

The pixel that the pixel layer 3 of present embodiment is included is the strong dielectric layer of scattering, and the dielectric layer is preferably comprised The electrophoretic medium of a large amount of powered solia particles.

The illuminator 4 of present embodiment is preferably the combination of LED, optical fiber and LED.

The occulter 5 of present embodiment be completely it is light tight and with diffusing reflection performance material, can select aluminum alloy sheet, High reflection printing-ink.

The occulter 5 of present embodiment is located at the outside edge of first substrate 1, and streaky shape, the width of strip is not less than L, L Tangent value of=0.5 × transparent medium plate thickness × transparent medium plate to the air cirtical angle of total reflection.Calculating can be proved, work as hair When the central point of body of light is located at first substrate thickness centre position, it is irradiated to the incidence angle for being less than the light with a distance from L from side and is less than Critical angle (otherwise more than critical angle), occulter is exactly to prevent this part light leakage.When first substrate is glass or acrylic, Half thickness of the L close to sheet material (first substrate).

The refractive body 6 of present embodiment is material completely light tight and with diffusing reflection performance, preferably aluminum alloy sheet, height Reflect printing-ink.

The occulter 5 and refractive body 6 of present embodiment can be the materials with good shading and diffusing reflection performance, It can be independent unit both when therefore being made using aluminium alloy plate, the two can also be merged into a unit, facilitate one Secondary shaping.

The drive circuit 7 and lighting circuit 8 of present embodiment can be arranged on two each independent substrates, can also It is arranged on same substrate, to save cost, the preferred PI flexible base boards of substrate.

For the ease of understanding said structure, first illustrate how to be distributed to from the light that end face enters light guide plate from optical principle On face, how to be come out from surface emitting.According to optical principle, as long as light its incidence angle from optically denser medium to optically thinner medium is more than Critical angle can only be just totally reflected, it is impossible to be reflected away, than the end of such light guide plate from two sides all smooth flats as shown in Figure 1A The light for being more than critical angle in the light (being projected by light source 1) that face enters can only be between the preceding surface and rear surface of light guide plate 2 constantly Ground is totally reflected, it is impossible to be refracted to by front and rear surfaces in air, it is impossible to constitute area source.But if the one side in light guide plate Some changes are made, light just may exit off the surface launching and come out, such as Figure 1B and Fig. 1 C like that make the one side of light guide plate coarse Astigmatism face 3, such as setting minute protrusions, minute groove or fine mesh on face, light does not occur full when being mapped to such face Reflection, but reflect or reflect to all directions, that is, scattering in front-rear direction, this is with regard to that can constitute area source, if as figure 1D adds reflectance coating 4 again below like that, and the whole nip on aheads of light scattered backward, that reforms into the way in traditional backlight source.This The front and rear both sides for planting the light guide plate in traditional backlight source are all air, so must be astigmatism face is wherein simultaneously set to, so that light Emitted from face.In traditional backlight source technology, make side incident first with the total reflection property of light guide plate smooth flat Light evenly distribute on the whole, the light-output on face is then recycled into reflectance coating by mutual backscattering using diffusion layer Light rush to a direction.In the utility model technology, the two sides of light guide plate is all smooth plane, remains pair of light guide plate The total reflection property in the face of air, the light for making side incident is evenly distributed on the whole, but is eliminated on light guide plate another side Diffusion layer (above it is stated that diffusion layer brings side effect when preposition), also eliminates the reflectance coating shut out the light；This practicality is new The another side of light guide plate is directly contacted with pixel layer in type, no and air contact, so not being totally reflected on the face, light can To be directly refracted to pixel layer, light direct irradiation microscopic scatterers do not produce interference light, and the loss of light is few.The utility model skill In art, by the use of display itself have to first substrate as light guide plate, light guide plate is not set additionally, built-in light source is being set up In the case of no increase thickness.

It is air outside the first substrate (being also the light guide plate of guide-lighting effect) of display in present embodiment, but Inner face is pixel layer, and its refractive index is far longer than air, when the refractive index of pixel layer is equal to or more than light guide plate refractive index It is not totally reflected, but reflects, light leaves light guide plate and enters pixel layer, is then scattered on solia particle, and this The image that the light of scattering exactly needs.When pixel layer refractive index close to light guide plate refractive index when, the numerical value of critical angle becomes big, A small amount of light more than incidence angle can be totally reflected, but most of light is still refracted to pixel layer, still can realize good illumination, electricity It is particularly the case in swimming display.The calculation formula of critical angle is：Critical angle=arc sin n1/n2, n1 is optically thinner medium Refractive index, n2 is the refractive index that n2 is light guide plate (first substrate) during optically denser medium refers in refractive index, present embodiment, about 1.52 (glass), n1 is the refractive index 1.00 of air or the refractive index of pixel layer, and calculating obtains critical angle of the light guide plate to air It it is 41.14 degree, critical angle of the light guide plate to pixel layer is 72.54 degree (assuming that the refractive index of pixel layer medium is 1.45).So When the light that illuminator is sent is from directive air surface inside light guide plate, most of light total reflection is returned, and is penetrated inside light guide plate Larger a part of anaclasis is gone out during to pixel aspect.The light of pixel layer is refracted to, by a large amount of small solid particulates in this layer Scattering, forms image observed person and sees.

It is seen from the above explanation, present embodiment relative patent ZL 201420513510.4 and patent CN103217848 A has marked difference and prominent effect.First, present embodiment proposes a kind of display and lighting source is integrated into one The built-in light source display of body, and correlation technique is external light source display, this cans be compared to from the progress of external hanging type touch-screen to embedded Formula touch-screen, it is not increase thickness additionally that it, which protrudes effect,；Secondly, the structure of present embodiment light guide plate is different, i.e. light guide plate The two sides of (first substrate) is all smooth plane, does not process the structure that site, projection etc. play astigmatism, is not using scattered Smooth surface exports face light, but makes anaclasis in light guide plate to pixel layer using index matching；3rd, because not having on light guide plate There is the structure for setting site, projection etc. to play astigmatism, the part for avoiding its scattered light directly reflexes to observer's Picture contrast declines caused by eyes；4th, save the cost that site or projection are made on light guide plate.Present embodiment It is to reflect light directly to produce diffusing reflection image to black or white solia particle irradiation, its effect is comparable to contrast in black and white.

The utility model belongs to preposition area source display, due to its special construction and principle, and the pixel layer of display must Must be scattering very strong medium, such as the electrophoretic layer containing powered solia particle.For reflective liquid-crystal display, sheet Utility model structure is not applied to, if using this structure, then the light that (substantially mirror-reflection) is reflected on reflector plate is reached It is totally reflected during another side, does not reach the purpose of irradiation.

Present embodiment has done further improvement in performance and cost.First, the edge in first substrate 1 and end Occulter 5 and refractive body 6 are respectively provided with, the interference light and the interference light of end leakage that so edge is leaked all have been recycled into Light；Secondly, the drive circuit 7 of display and the lighting circuit 8 of illuminator are merged on same substrate, saved into This.

When present embodiment is promoted to simple display the display of internal illumination function, illuminator 4, screening increase only Four units such as body of light 5 and refractive body 6, lighting circuit 8, do not increase and occupy (the borrow display of the larger light guide plate of thickness space The substrate of device is guide-lighting), occulter 5 occupies thickness space less than 0.1 millimeter, and illuminator 4 and refractive body 6 do not increase thickness, illumination The substrate of the substrate of circuit 8 and the original drive circuit 7 just having merges.

Fig. 2 is the sectional view of the display of area source built in present embodiment, wherein first substrate 1 and second substrate 2 Inner side, which has, is full of pixel layer 3 between transparency electrode, two substrates, when on the selection area on first substrate 1 and second substrate 2 Electrode (thickness is minimum, is not shown in Fig. 2) be powered when pixel corresponding with the selection area light reflectivity change, from And the color of the pixel is different from other pixels, the display of writings and image is realized.Drive circuit 7 is connected to the He of first substrate 1 Electrode on second substrate 2 simultaneously provides driving electric signal, and it is, by the integrated electric loop of the electronic components such as IC, to be arranged on PI soft On property substrate.Above is playing the structure of display, the structure of area source effect has been said below.Illuminator 4 is close to the first base The end face of plate 1 is set, and its light sent is injected in first substrate 1 through right side, at this moment as the first substrate 1 of transparent medium plate Play light guide plate, account for when the most light beam more than critical angle is mapped to above air surface and be all totally reflected back in the light Come, and a part is reflected back another part and is refracted away when being mapped to below, the pixel behind the illumination reflected away is bright Layer 3；Being accounted in the light when the least a portion of light beam less than critical angle is mapped to above air surface to be totally reflected, but is blocked body 5 reflect by force, and thereafter wherein a part becomes greater than the beche-de-mer without spike and aforementioned process of critical angle；Light beam more than critical angle is passed through The end face on the opposite for being repeatedly totally reflected to transparent medium plate is crossed, now this light intensity row of refractive body 6 is reflected, and changes it Incidence angle, participates in reflection hereafter and refracting process.The lighting circuit 8 of illuminator 4 can be separately provided, can also be with display Drive circuit 7 unite two into one, the situation that lighting circuit 8 and drive circuit 7 are integrated is expressed in fig. 2.

Fig. 3 is the front view of the first embodiment of the display of built-in area source, and first substrate 1 is that plating ITO is saturating The glass of prescribed electrode, second substrate 2 is to have plated metal electrode glass, and wherein one side of second substrate 2 has more one than first substrate 1 A bit, convenient ITO electrode thereon is connected on drive circuit 7；Illuminator 4 is LED, is connected on lighting circuit 8, positioned at the Near its right end face of one substrate 1, on its light emission direction from right to left, and, lighting circuit 8 and drive substantially parallel with first substrate 1 Dynamic circuit 7 is arranged on same PI flexible base boards；Occulter 5 and refractive body 6 are that integral bending is made of thin aluminum sheet Frame, previous section plays occulter, and lateral parts play refractive body.Pixel layer 3 in the embodiment be containing The electrophoretic layer of a large amount of powered small solid particulates.The pixel layer 3 can be adapted to the Jie of the diffusing reflection of display by force with other Matter layer substitution.

Fig. 4 is the front view of the second embodiment of built-in area source display.The area compared with Fig. 3 embodiments Not only in LED quantity and optical fiber, the end of a LED 4 first irradiation optical fiber 10, then fiber-optic illuminated first substrate 1, this light This is to consider the very thin situation of first substrate 1 for the combination of fine and LED, and such as less than equal to 0.2 millimeter, correspondence is so thin The LED thickness of end face also it is very thin, it is expensive.If the LED light launched is directed to the end face of first substrate 1 with optical fiber, that Thickness is small not to be a problem.So it is adapted to display base plate increasingly thinning trend.

The characteristics of the utility model utilizes electrophoretic display device (EPD) EPD, its pixel layer is containing a large amount of powered small solid particulates Medium, these solia particles have very strong scattering, as long as the light on light guide plate is directed on these solia particles just Display illumination well can be realized.The utility model is also noted that the substrate of the opposite observer of all displays is all transparent base Plate, its refractive index is also higher, so it can take on the effect of good light guide plate.Thus, the utility model creativeness is carried It is light guide plate to have gone out with the original preceding transparency carrier of display, using scattering very strong pixel layer as the technical scheme of diffusion layer. The utility model is not provided with plug-in light guide plate, is conducive to the thinning of display thickness, also without the diffusion layer before display, Avoid a large amount of losses of light and disturb the generation of light.

Above content is to combine specific embodiment further detailed description of the utility model, it is impossible to assert Specific implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field For, without departing from the concept of the premise utility, some simple deduction or replace can also be made.

Claims (9)

1. a kind of display of built-in light source, it is characterised in that including first substrate, second substrate, pixel layer and with described Light source and drive circuit that two substrates are fixed, the first substrate is transparent medium plate, and the first substrate has relative the Surface and relative incident light end face, non-incident light end face after one preceding surface, first, the second substrate have relative second Surface behind preceding surface and second, surface is provided with transparency electrode after described first, and the second preceding surface is provided with electrode, described first Surface is smooth plane and is parallel to each other after preceding surface, first, and the distance on surface and the second preceding surface is consolidated after described first Fixed, after the pixel layer is filled in described first between surface and the second preceding surface, the pixel layer is included being capable of independent control Pixel, the pixel is the medium containing microscopic scatterers, and the light source is adjacent to the incident light end face, the light source hair The light gone out enters the first substrate through the incident light end face, and enters described after first substrate reflection, refraction Pixel layer, the drive circuit is electrically connected with the electrode.

2. the display of built-in light source as claimed in claim 1, it is characterised in that the first substrate includes stacking at least Two layers of transparent medium plate, dielectric-slab described in adjacent two layers is bubble-freely fitted entirely with Optical transparent adhesive.

3. the display of built-in light source as claimed in claim 1, it is characterised in that the pixel is micro- containing powered solid The electrophoretic medium of grain.

4. the display of built-in light source as claimed in claim 1, it is characterised in that the light source includes multiple be spaced apart Sheet illuminator, the illuminator is parallel with the first substrate.

5. the display of built-in light source as claimed in claim 1, it is characterised in that the second substrate, which has, protrudes horizontally up institute The part of first substrate incident light end face is stated, the drive circuit and light source are located at the part stretched out.

6. the display of built-in light source as claimed in claim 1, it is characterised in that the light source includes illuminator and optical fiber, The optical fiber is located between the illuminator and incident light end face, and the light that the illuminator is sent passes through the fiber-optic illuminated institute State incident light end face.

7. the display of built-in light source as claimed in claim 1, it is characterised in that described also including lighttight refractive body Refractive body is located at the non-incident light end face of the first substrate.

8. the display of built-in light source as claimed in claim 7, it is characterised in that also including light tight and can be irreflexive Occulter, the occulter is located at the described first preceding surface and the neighbouring incident light end face.

9. the display of built-in light source as claimed in claim 8, it is characterised in that the occulter and refractive body be one into The aluminum alloy sheet of type.